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Table 3 Characteristics of patients with or without tumor necrosis

From: The prognostic value of tumor necrosis in patients undergoing stereotactic radiosurgery of brain metastases

Parameter

N (%) patients without tumor necrosis

N (%) patients with tumor necrosis

Age, years

  

 Median age

58.4

58.5

 Range

23-83

37-81

Status of primary lesion

45 (70)

58 (71)

 Active

19 (30)

24 (29)

 Controlled

  

KPS median

80%

80%

  ≥ 90

42 (65)

44 (53)

  < 90

22 (35)

38 (46)

Number of lesions

  

 1

43 (67)

58 (70)

 2-3

20 (33)

22 (27)

 4-6

0

2 (3)

RPA class

  

 I

6 (9)

11 (13)

 II

49 (77)

65 (79)

 III

9 (14)

6 (8)

Median dose (Gy)

22.2

22.5

Median tumor size (cm3)

3.2

6.7

Treated with WBI

48 (58)

29 (45)

Therapy of primary lesion

  

 Chemotherapy

65 (79)

49 (76)

 Radiotherapy

34 (41)

24 (38)

 Operation

52 (63)

42 (65)

  1. Abbreviations:
  2. KPS Karnofsky performance status, RPA Recursive partitioning analysis, SRS stereotactic radiosurgery.